Conservation and Development in Northern Thailand. Proceedings of a Programmatic Workshop on Agro-forestry and Highland-Lowland Interactive Systems, Held at Chiang Mai, Thailand, 13-17 November 1978 (UNU, 1980, 114 pages)

Conservation Education: a Planning Guide (Peace Corps, 1995)

Conservation of Biodiversity and the New Regional Planning (OSA/IUCN, 1995, 159 pages)